I personally love using flat top kabuki brushes! They really buff and blend the foundation into your skin. I’m not sure if you’ve tried the ELF Flat Top Kabuki Brush which I think works pretty well although it’s my least favorite out of all my flat top kabukis.
My personal favs are
Coastal Scents Ionic Buffer $7 (one sale for $4 right now!)
Real Technique’s Expert Face Brush $9
Sedona Lace Flat Top Kabuki ($12)
Try foundations like Loreal True Match Lumi Foundation, Dior Skin Nude Hydrating Foundation, Lancome Renergie Lift (more lightweight and dewy than the Tient Miracle) & NARS Sheer Glow!
Staring from least expensive to more expensive,
Coastal Scents, ELF Brushes, Eco tools, Real Techniques, Sedona Lace, Sigma Brushes, Mac Brushes & Sephora Brushes (either sephora brand or name brand)
I have brushes from all these companies & love them!
The only thing id say is I don’t like ALL coastal scents brushes some are not as good as others (top favs are Ionic Flat Top Buffer & Pro Blending Fluff) same with ELF brushes I only like the studio line $3 brushes :)